JavaScriptCore-903.5.tar.gz

[apple/javascriptcore.git] / bytecode / StructureStubInfo.h

diff --git a/bytecode/StructureStubInfo.h b/bytecode/StructureStubInfo.h
index 95dd2664ab3cfd4761aa734ef6d3d7896433e077..7f11edd769691518876cd10f5f2855e8423f68cd 100644 (file)
--- a/bytecode/StructureStubInfo.h
+++ b/bytecode/StructureStubInfo.h
@@ -35,45 +35,55 @@
 
 namespace JSC {
 
+    enum AccessType {
+        access_get_by_id_self,
+        access_get_by_id_proto,
+        access_get_by_id_chain,
+        access_get_by_id_self_list,
+        access_get_by_id_proto_list,
+        access_put_by_id_transition,
+        access_put_by_id_replace,
+        access_get_by_id,
+        access_put_by_id,
+        access_get_by_id_generic,
+        access_put_by_id_generic,
+        access_get_array_length,
+        access_get_string_length,
+    };
+
     struct StructureStubInfo {
-        StructureStubInfo(OpcodeID opcodeID)
-            : opcodeID(opcodeID)
+        StructureStubInfo(AccessType accessType)
+            : accessType(accessType)
+            , seen(false)
         {
         }
 
-        void initGetByIdSelf(Structure* baseObjectStructure)
+        void initGetByIdSelf(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure)
         {
-            opcodeID = op_get_by_id_self;
+            accessType = access_get_by_id_self;
 
-            u.getByIdSelf.baseObjectStructure = baseObjectStructure;
-            baseObjectStructure->ref();
+            u.getByIdSelf.baseObjectStructure.set(globalData, owner, baseObjectStructure);
         }
 
-        void initGetByIdProto(Structure* baseObjectStructure, Structure* prototypeStructure)
+        void initGetByIdProto(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, Structure* prototypeStructure)
         {
-            opcodeID = op_get_by_id_proto;
+            accessType = access_get_by_id_proto;
 
-            u.getByIdProto.baseObjectStructure = baseObjectStructure;
-            baseObjectStructure->ref();
-
-            u.getByIdProto.prototypeStructure = prototypeStructure;
-            prototypeStructure->ref();
+            u.getByIdProto.baseObjectStructure.set(globalData, owner, baseObjectStructure);
+            u.getByIdProto.prototypeStructure.set(globalData, owner, prototypeStructure);
         }
 
-        void initGetByIdChain(Structure* baseObjectStructure, StructureChain* chain)
+        void initGetByIdChain(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure, StructureChain* chain)
         {
-            opcodeID = op_get_by_id_chain;
-
-            u.getByIdChain.baseObjectStructure = baseObjectStructure;
-            baseObjectStructure->ref();
+            accessType = access_get_by_id_chain;
 
-            u.getByIdChain.chain = chain;
-            chain->ref();
+            u.getByIdChain.baseObjectStructure.set(globalData, owner, baseObjectStructure);
+            u.getByIdChain.chain.set(globalData, owner, chain);
         }
 
         void initGetByIdSelfList(PolymorphicAccessStructureList* structureList, int listSize)
         {
-            opcodeID = op_get_by_id_self_list;
+            accessType = access_get_by_id_self_list;
 
             u.getByIdProtoList.structureList = structureList;
             u.getByIdProtoList.listSize = listSize;
@@ -81,7 +91,7 @@ namespace JSC {
 
         void initGetByIdProtoList(PolymorphicAccessStructureList* structureList, int listSize)
         {
-            opcodeID = op_get_by_id_proto_list;
+            accessType = access_get_by_id_proto_list;
 
             u.getByIdProtoList.structureList = structureList;
             u.getByIdProtoList.listSize = listSize;
@@ -89,42 +99,49 @@ namespace JSC {
 
         // PutById*
 
-        void initPutByIdTransition(Structure* previousStructure, Structure* structure, StructureChain* chain)
+        void initPutByIdTransition(JSGlobalData& globalData, JSCell* owner, Structure* previousStructure, Structure* structure, StructureChain* chain)
         {
-            opcodeID = op_put_by_id_transition;
+            accessType = access_put_by_id_transition;
 
-            u.putByIdTransition.previousStructure = previousStructure;
-            previousStructure->ref();
-
-            u.putByIdTransition.structure = structure;
-            structure->ref();
-
-            u.putByIdTransition.chain = chain;
-            chain->ref();
+            u.putByIdTransition.previousStructure.set(globalData, owner, previousStructure);
+            u.putByIdTransition.structure.set(globalData, owner, structure);
+            u.putByIdTransition.chain.set(globalData, owner, chain);
         }
 
-        void initPutByIdReplace(Structure* baseObjectStructure)
+        void initPutByIdReplace(JSGlobalData& globalData, JSCell* owner, Structure* baseObjectStructure)
         {
-            opcodeID = op_put_by_id_replace;
+            accessType = access_put_by_id_replace;
     
-            u.putByIdReplace.baseObjectStructure = baseObjectStructure;
-            baseObjectStructure->ref();
+            u.putByIdReplace.baseObjectStructure.set(globalData, owner, baseObjectStructure);
         }
 
         void deref();
+        void visitAggregate(SlotVisitor&);
+
+        bool seenOnce()
+        {
+            return seen;
+        }
+
+        void setSeen()
+        {
+            seen = true;
+        }
+
+        int accessType : 31;
+        int seen : 1;
 
-        OpcodeID opcodeID;
         union {
             struct {
-                Structure* baseObjectStructure;
+                WriteBarrierBase<Structure> baseObjectStructure;
             } getByIdSelf;
             struct {
-                Structure* baseObjectStructure;
-                Structure* prototypeStructure;
+                WriteBarrierBase<Structure> baseObjectStructure;
+                WriteBarrierBase<Structure> prototypeStructure;
             } getByIdProto;
             struct {
-                Structure* baseObjectStructure;
-                StructureChain* chain;
+                WriteBarrierBase<Structure> baseObjectStructure;
+                WriteBarrierBase<StructureChain> chain;
             } getByIdChain;
             struct {
                 PolymorphicAccessStructureList* structureList;
@@ -135,12 +152,12 @@ namespace JSC {
                 int listSize;
             } getByIdProtoList;
             struct {
-                Structure* previousStructure;
-                Structure* structure;
-                StructureChain* chain;
+                WriteBarrierBase<Structure> previousStructure;
+                WriteBarrierBase<Structure> structure;
+                WriteBarrierBase<StructureChain> chain;
             } putByIdTransition;
             struct {
-                Structure* baseObjectStructure;
+                WriteBarrierBase<Structure> baseObjectStructure;
             } putByIdReplace;
         } u;